Lime-hydrating machine.



No. 848,353. PATBNTED MAR. 26,'1907- P. G. PORRESTBR. I

LIME HYDR'ATING MACHINE.

\ AYPLIOATION- FILED OOTA. 1906.

- frreer Pelzer* aZorYz/S hinged doors A', preferably arranged ashorizontal UNITED STATES PATENT PETER C.

LIME-HYDRATINC- MACHINE.

No. 848,358. Specification of Letters Patent.

Application led October 4,1906- Seral N0. 337,341.

Patented March 26, 1907.

To all w/wm t may concern:

Be it known that I, PETER C. FoRREsTER,

a citizen of the United States, residing at Tacoma, in the county ofPierce and State of IVashington, have invented a certain new and usefulImprovement in Lime-Hydrating Machines, of which the following is aspeci- F iication.

My invention relates to apparatus for hydrating lime and for thehandling of the prodprocess, and has for i manner. For example, I haveshown two water-pipes E E, having the perforations E in their undersides, this arrangement securinO an even distribution of the water overthe lime in the pan.

In the bottom of the chamber is a trough containing a screw conveyer Fon the shaft, on which is the pulley F2, driven by a belt F3 from anydesired source of power. The conveyer discharges into a cylindrical uctof `such hydrating screen G, through which the 'finer product is itsobject to provide new and improved sifted into a trough G. The largerlumps devices and constructions in apparatus of this character.

he invention is illustrated in the accompanying drawings, wherein` igurel is a horizontal sectional view through the top of thehydrating-chamber, Fig. 2, a vertical section on line 2 2 of Fig. l andig. 3, a vertical section on line 3 3 of Fig. l.

Like letters of reference indicate like parts in. all the drawings. y

The apparatus consists of a boX or chamber, with suitable means forholding the lime and supplying 'water thereto, together with new andimproved devices for sifting and conveying the product of suchhydration.

A represents the boX forming the hydrating-chamber, provided at the topwith the are carried out into the receptacle II by means of the spokes JJ, formed on a collar J, pinned to the end of the conveyer-shaft.

I wish it to be understood that I do not desire to be limited to theexact details shown and described, for obvious modifications will occurto any person skilled in the art.

he use and operation of my invention relating to the hydrating of limeis as follows: The doors of the hydrating-chamber being in two pairs areopen upwardly and folded toget er in groups of two, so as to leave thelargest possible amount of open space. The hydrating-pan will besuspended in a hori- Zontal position, resting at one end on thecross-bar and at the other being supported by the chains. The lime willthen be spread over the pan, and the doors will be c losed.

shown-that is, the end doors hinging outmitted from the steam-pipe onwhich the pan ward and the center doors hinged so as to is mounted. Thissteam is discharged fold together, this arrangement affording thethrough a number of small holes up into the est possible amount of openspace. chamber and passes around and fills the Within the chamber' is ahydrating-pan B, chamber and assists in carrying on the prochaving twobottoms B B2, between which is ess of hydrating. the space B3. The panis arranged to tilt on ter isfurnished from the tank to the water asuitable axis. For example, I have shown pipe or sprinkler, which ismounted above the pan mounted by means of straps B4 on a the pan eitherso that it may swing back and pipe C, the pipe extending across thehydratforth or provided with holes properly graduing-chamber at one sideof the center of the ated, so as to give a comparatively uniform pan.The short end of the pan rests upon distribution of the water over thesurface of the cross-beam B5, the long end being susthe lime. When theprocess of hydrating pended by the chains D D, attached to the has beencarried out, the crank can be operwindlass D, which may be convenientlyated to lower the chains and release the one manipulated by the handleD2, which is held i end of the pan and permit it to assume the inposition by the pin D3. The pipe C is f inclined position, (shown indotted lines,) provided with perforations C, opening into whereupon itscontents, consisting of hythe space B3. Steam or other hot fluid isdrated lime, will pass down into the transintroduced into the space B3.Preferably I verse trough at one end of the collector. use steam, andthis heats the pan and also Here the conveyer conveys it out into theprevents the wooden part from burning. sifting-chamber at one side ofthe hydratingater may be supplied in any desired chamber. The outside ofthis chamber is A suitable supply of wation of a hydrating-chamber, witha tilting I the fine stuff passes into a suitable receptacle below. Theou ter vertical side of this siftingchamber is open, and the heavy lumpsof material carried around by the spokes on the conveyer-shaft, whichare not sifted through the exterior screen, will be thrown outwardly andfall into the receptacle for large lumps.

I claimd 1. In hydrating apparatus, the combination of ahydrating-chamber, with a tilting pan, means for supplying water to thematerial in the pan, and a conveying device for conveying the hydratedproducts from the chamber.

2. In hydrating apparatus, the combinapan, means for supplying water tothe material in the pan, a trough below one end of said pan, and aconveyer in said trough,

3. In hydrating apparatus, the combination of a hydrating-chamber, witha tilting pan mounted on an axis to one side of its center line, meansfor tilting and raising said pan, a trough in the chamber into whichsaid pan discharges when tilted, and a conveyer in said trough.

4. In hydrating apparatus, the combination of a hydrating-chamber, witha tilting pan mounted on an aXis to one side of its center line, awindlass device for supporting the long end of the pan, a trough in thechamber l 5. In hydrating apparatus, the combination of ahydrating-chamber, with a pan in said chamber, a screw conveyer toconvey the material from the chamber, and a screening-chamber to receivethe material from the conveyer.

6. In hydrating apparatus, the combination of a hydrating-chamber, witha pan in said chamber, a screw conveyer to convey the material from thechamber, a cylindrical screening-chamber to receive the material fromthe conveyer, and rotating spokes in the screening-chamber.

7. In hydrating apparatus, the combination of a hydrating-chamber, witha pan having double bottoms, the upper one being perforate and a pipe todischarge ahot Huid into the space between the bottoms of the S. Inhydrating apparatus, the combination of a hydrating-chamber, with a panhaving a double bottom, and a steam-pipe on which the pan is mounted soas to tilt thereon, said steam-pipe being perforated so as to dischargesteam between the bottoms of the pan.

PETER C. FORRESTER.

Witnesses:

A. E. GRAFTON, J. C. MACDONALD.

It is hereby eertied that in Letters Patent No. 848,358, granted March26, 1907, upon the application of Peter C. Forrester, ofTaeoma,Washington,for an improvement in Lime-Hydrating Maehin.es,7 anerror occurs in the printed specification requiring` correction, as.follows: In line 51, page 2, the word perforate should read imperfomzfe;and that the said Letters Patent should be read with this correctiontherein that the same may conform to the record of the oase in thePat-ent Oiee.

Signed and sealed this 27th day of April, A. D., 1909.

[SEAL] O. C. BILLINGS,

Acting Commissioner of Patents.

